(19)
(11) EP 1 184 274 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.11.2004 Bulletin 2004/48

(43) Date of publication A2:
06.03.2002 Bulletin 2002/10

(21) Application number: 01119380.2

(22) Date of filing: 10.08.2001
(51) International Patent Classification (IPC)7B62K 15/00, B62M 23/02
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 31.08.2000 JP 2000263903
14.12.2000 JP 2000379923

(71) Applicant: Honda Giken Kogyo Kabushiki Kaisha
Minato-ku, Tokyo (JP)

(72) Inventors:
  • Nakagomi, Yoshio, K. K. Honda Gijutsu Kenkyusho
    Wako-shi, Saitama (JP)
  • Maruyama, Tomoyuki, K. K. Honda Gijutsu Kenkyusho
    Wako-shi, Saitama (JP)
  • Nagura, Hidenori, K. K. Honda Gijutsu Kenkyusho
    Wako-shi, Saitama (JP)
  • Shimmura, Hiroyuki, K. K. Honda Gijutsu Kenkyusho
    Wako-shi, Saitama (JP)
  • Yahagi, Kunio, K. K. Honda Gijutsu Kenkyusho
    Wako-shi, Saitama (JP)
  • Iseno, Mitsuru, K. K. Honda Gijutsu Kenkyusho
    Wako-shi, Saitama (JP)

(74) Representative: Liska, Horst, Dr.-Ing. et al
Weickmann & Weickmann Patentanwälte Postfach 86 08 20
81635 München
81635 München (DE)

   


(54) Bicycle


(57) The invention makes it possible to fold up or disassemble a body frame of a power-assisted bicycle readily. To achieve this, a body frame is composed of a front frame 22 and a rear frame 23, and the two are connected for folding up movement with or disassembly from each other at a pivot element. A pivot pin 242 secured to the rear frame 23 is mounted into a boss element 451 formed at a rear end of the front frame 22 through a cutaway portion. The cutaway portion is closed up with a lock lever 452 resiliently pressed by a hook 455b integral with an operation lever 455. By pressing the operation lever 455, the engagement between the hook 455b and the lock lever 452 is canceled, and the lock lever 452 is biased by a spring 456 to open the cutaway portion of the boss element 451. Consequently, the pivot pin 242 can move out of the boss element 451, and the front frame 22 and the rear frame 23 can be disassembled from each other. Since the operation lever 455 is accommodated in the inside of the body frame, it can be operated only based on the user's intention to do so.







Search report